该句中,How long是特殊疑问词组,ri ce是主语,水稻应该是被种植,所以为“has been grown”,是现在完成时的被动语态,要将助动词h as放在主语前构成一般疑问句;in China,介词 短语作地点状语;故答案为"How long has rice b een grown in China?"。
【解析】How long has rice been grown in Chi na? 核心短语/词汇:how long“多久” in China“在中国” 句子译文:水稻在中国种植多久了? 解析:这是被动语态的特殊疑问句,how long”多久”在句首;被动语态的谓语动词助动词be+done (动词的过去分词),完成时形式是have/has +b een+done;主语是rice“水稻”...
Rice is a global staple food. According to the Food and Agriculture Organization of the United Nations (FAO), about 90% of the world's rice is produced and consumed in the Asia-Pacific region. Nevertheless, production of rice is significant locally in many other parts of the world. This ...
As to what plants to be grown on the moon researchers are still deciding, but one of the front runners under consideration is Tripogon loliiformis, a kind of Australian native(本土的)grass that can live in extreme condition...
Two years ago a small town in Changhua started to grow healthy rice. The healthy rice was not grown by farmers but by the students from a small primary school of only about fifty people. ①(came growing rice of the idea the school teachers from. ) When making teaching plans the teachers...
Chinese astronauts have successfully grown rice in space. This makes it possible for astronauts to grow food to support long-term space stays.”可知,天宫空间站上的科学实验的 特殊之处在于它可以为太空旅行提供足够的食物,故选D。 (3)题详解: 词句猜测题。根据第四段中的“If the experiment is ...
While there have been other rice experiments in space, the one being conducted on Tiangong is the first of its kind. It aims to produce the complete life cycle of the plant, which begins with a seed and ends with a grown plant producing new seeds. The astronauts will keep studying the ...
It’s essential to plant them early enough in spring so they mature while the weather is still cool! (This means planting in most parts of the United States and Canada in February, March, or April.) However, they can also be grown as a fall or winter crop in warmer regions. Peas do...
Li, who works with the Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, is the brain behind a number of popular soybean varieties grown in China. Soybean seeds are pictured at a seed bank for cold-region crops in northeast China's Heilongjiang Province, May 19, ...
The time between flowering and seed filling is the most critical in terms of avoiding drought stress. A shortage of water during this period may reduce both the quantity and the quality of the seed oil produced.Sunflower Crop Planting And Cultivation...